The spelling of the word "didst a t" may seem confusing to some, but it is actually a contraction of two separate words: "didst" and "a t". "Didst" is the second-person singular past tense form of the verb "do" and is pronounced /dɪdst/. Meanwhile, "a t" simply means "at" and is pronounced /ət/. When combined, the two words form "didst a t", pronounced /ˈdɪd stət/. This archaic phrase is rarely used in modern English, but its correct spelling and pronunciation can still be appreciated by language enthusiasts.